ASTM E646 样本

ASTM E646 描述了在塑性区域表现出连续应力-应变曲线的金属板材的拉伸应变硬化指数（n 值）的测定。来源：https：//www.google.com/url?sa=tamp；rct=jamp；q=amp；esrc=samp；source=webamp；cd=amp；cad=rjaamp；uact=8amp；ved=2ahUKEwiVv5eyyeaEAxXfRmcHHbtbB5kQFnoECBAQAQamp；url =https3A2F2Fcdn.standards.iteh.ai2Fsamples2F935642Fd48e2bb8fa464486a2b4d9b7628 c04e82FASTM-E646-15.pdfamp；usg=AOvVaw0EJnA72ZpO5pb09UlIuKvsamp；opi=89978449